A real-time optical fiber detection module and method for WDM system applied to 5G fronthaul

Abstract

The invention discloses a WDM system real-time optical fiber detection module and method applied to 5G front transmission, including a circulator, the circulator is connected with an LD light-emitting unit and an APD light-receiving unit, and the circulator is connected with a multi-channel optical signal multiplexer; The LD light-emitting unit is connected with an LD power control unit, the APD light receiving unit is connected with an APD power control unit, the APD light receiving unit is also connected with a transimpedance amplifier unit and a high-speed AD unit, and the high-speed AD unit is connected with an FPGA control acquisition unit, and the FPGA control The acquisition unit is connected with a CPU management unit; the FPGA control acquisition unit is also connected with the LD power control unit and the APD power control unit respectively. The CPU management unit controls the FPGA to control the acquisition unit to switch to the corresponding test fiber to perform multiple repeated tests and collect corresponding test data according to the received detection instructions, and then transmits the test data back to the CPU management unit for storage. The invention has the characteristics of saving time and labor, low detection cost and being able to detect the optical fiber in real time.

Description

Technical field [0001] The present invention relates to a fiber optic detecting device, particularly an real-time optical fiber detection module and method for a WDM system applied to 5 g. Background technique [0002] With the issuance of 5G licenses in my country, 5G optical network is in full swing, 5G is moving toward higher speed, lower delay, lower power, and the front-shot network has become an essential ability to enhance its integrated capacity. One of the important means, and the new architecture prequel network C-RAN came into being. 5G C-RAN architecture will bring large-scale increase in optical fiber demand, although it has been applied to WDM technology, it is still unable to meet the growth of 5G construction site, and the traditional 3G / 4G era chimney, star distribution Different from the network architecture, 5G pre-transmission network architecture will fully apply network virtualization, wireless micrigeration, and mobile edge computing technologies, and imp...

AI Technical Summary

Problems solved by technology

At present, in order to solve the quality problems of optical fiber construction in the process of large-scale optical fiber construction in the 5G fronthaul network, it is necessary to equip a large number of testing instruments and professionals to evaluate the quality of optical fiber construction, which is not only time-consuming and labor-intensive, but also costs a lot. , and it is impossible to detect the optical fiber in real time

Therefore, the existing technology has the problems of time-consuming and labor-intensive, high detection cost and the inability to detect the optical fiber in real time.

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